Initial checkin.
diff --git a/examples/AddPerson.java b/examples/AddPerson.java
new file mode 100644
index 0000000..4917684
--- /dev/null
+++ b/examples/AddPerson.java
@@ -0,0 +1,89 @@
+// See README.txt for information and build instructions.
+
+import com.example.tutorial.AddressBookProtos.AddressBook;
+import com.example.tutorial.AddressBookProtos.Person;
+import java.io.BufferedReader;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.InputStreamReader;
+import java.io.IOException;
+import java.io.PrintStream;
+
+class AddPerson {
+ // This function fills in a Person message based on user input.
+ static Person PromptForAddress(BufferedReader stdin,
+ PrintStream stdout) throws IOException {
+ Person.Builder person = Person.newBuilder();
+
+ stdout.print("Enter person ID: ");
+ person.setId(Integer.valueOf(stdin.readLine()));
+
+ stdout.print("Enter name: ");
+ person.setName(stdin.readLine());
+
+ stdout.print("Enter email address (blank for none): ");
+ String email = stdin.readLine();
+ if (email.length() > 0) {
+ person.setEmail(email);
+ }
+
+ while (true) {
+ stdout.print("Enter a phone number (or leave blank to finish): ");
+ String number = stdin.readLine();
+ if (number.length() == 0) {
+ break;
+ }
+
+ Person.PhoneNumber.Builder phoneNumber =
+ Person.PhoneNumber.newBuilder().setNumber(number);
+
+ stdout.print("Is this a mobile, home, or work phone? ");
+ String type = stdin.readLine();
+ if (type.equals("mobile")) {
+ phoneNumber.setType(Person.PhoneType.MOBILE);
+ } else if (type.equals("home")) {
+ phoneNumber.setType(Person.PhoneType.HOME);
+ } else if (type.equals("work")) {
+ phoneNumber.setType(Person.PhoneType.WORK);
+ } else {
+ stdout.println("Unknown phone type. Using default.");
+ }
+
+ person.addPhone(phoneNumber);
+ }
+
+ return person.build();
+ }
+
+ // Main function: Reads the entire address book from a file,
+ // adds one person based on user input, then writes it back out to the same
+ // file.
+ public static void main(String[] args) throws Exception {
+ if (args.length != 1) {
+ System.err.println("Usage: AddPerson ADDRESS_BOOK_FILE");
+ System.exit(-1);
+ }
+
+ AddressBook.Builder addressBook = AddressBook.newBuilder();
+
+ // Read the existing address book.
+ try {
+ FileInputStream input = new FileInputStream(args[0]);
+ addressBook.mergeFrom(input);
+ input.close();
+ } catch (FileNotFoundException e) {
+ System.out.println(args[0] + ": File not found. Creating a new file.");
+ }
+
+ // Add an address.
+ addressBook.addPerson(
+ PromptForAddress(new BufferedReader(new InputStreamReader(System.in)),
+ System.out));
+
+ // Write the new address book back to disk.
+ FileOutputStream output = new FileOutputStream(args[0]);
+ addressBook.build().writeTo(output);
+ output.close();
+ }
+}
